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Archive for the ‘chemistry’ category: Page 12

Oct 3, 2024

A breakthrough by UChicago scientists enables greener microfabrication

Posted by in categories: biotech/medical, chemistry, computing

Imagine being able to create incredibly tiny structures with the same ease and sustainability as printing on paper.

This is the frontier of microfabrication—the process of making microscopic structures that are crucial for the operation of everything from computer chips to medical devices.

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Oct 2, 2024

Webb Telescope Unveils New Chemical Insights on Pluto’s Moon Charon

Posted by in categories: chemistry, evolution, particle physics, space

What secrets can Pluto’s moon, Charon, reveal about the formation and evolution of planetary bodies throughout the solar system? This is what a recent study published in Nature Communications hopes to address as an international team of researchers led by the Southwest Research Institute (SwRI) used NASA’s James Webb Space Telescope (JWST) to conduct the first-time detection of hydrogen peroxide and carbon dioxide on Charon’s surface, which adds further intrigue to this mysterious moon, along with complementing previous discoveries of water ice, ammonia-bearing species, and organic materials, the last of which scientists hypothesize could explain Charon’s gray and red surface colors.

“The advanced observational capabilities of Webb enabled our team to explore the light scattered from Charon’s surface at longer wavelengths than what was previously possible, expanding our understanding of the complexity of this fascinating object,” said Dr. Ian Wong, who is a staff scientist at the Space Telescope Science Institute and a co-author on the study.

Detecting hydrogen peroxide is significant since it forms from the broken-up oxygen and hydrogen atoms after water ice is exposed to cosmic rays, solar wind, or solar ultraviolet light. This indicates that the Sun’s activity influences surface processes so far away, with Charon being approximately 3.7 billion miles from the Sun. The researchers determined that Charon’s carbon dioxide serves as a light coating on Charon’s water-ice heavy surface. While the surface of Charon was studied in-depth from NASA’s New Horizons mission in 2015, these new findings provide greater understanding of the physics-based processes responsible for Charon’s unique surface features.

Oct 1, 2024

Looking back at President Jimmy Carter’s science policy

Posted by in categories: chemistry, education, energy, mathematics, physics, policy, science

As President, Jimmy Carter established several science-related initiatives and policies.


Carter also sought to promote scientific research and development in a number of areas. He increased funding for basic science research in fields such as physics and chemistry, and established the National Commission on Excellence in Education to promote improvements in science and math education in American schools.

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Oct 1, 2024

US scientist reveal mouth swab that can gauge your risk of death

Posted by in categories: biotech/medical, chemistry, genetics, life extension

U.S. researchers developed CheekAge, a tool that reliably estimates mortality risk.


Researchers in the United States have created a next-generation tool named CheekAge, which uses methylation patterns found in easily obtainable cheek cells.

In a groundbreaking discovery, the team has demonstrated that CheekAge can reliably estimate mortality risk, even when epigenetic data from different tissues are utilized for analysis.

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Sep 30, 2024

Quantum sensing approach captures nanoscale electrochemical evolution in battery

Posted by in categories: chemistry, evolution, nanotechnology, particle physics, quantum physics

Battery performance is heavily influenced by the non-uniformity and failure of individual electrode particles. Understanding the reaction mechanisms and failure modes at nanoscale level is key to advancing battery technologies and extending their lifespan. However, capturing real-time electrochemical evolution at this scale remains challenging due to the limitations of existing sensing methods, which lack the necessary spatial resolution and sensitivity.

Sep 30, 2024

New filtration material could remove long-lasting chemicals from water

Posted by in categories: biotech/medical, chemistry, engineering

Water contamination by the chemicals used in today’s technology is a rapidly growing problem globally. A recent study by the U.S. Centers for Disease Control found that 98 percent of people tested had detectable levels of PFAS, a family of particularly long-lasting compounds also known as “forever chemicals,” in their bloodstream.

A new filtration material developed by researchers at MIT might provide a nature-based solution to this stubborn contamination issue. The material, based on natural silk and cellulose, can remove a wide variety of these persistent chemicals as well as heavy metals. And, its antimicrobial properties can help keep the filters from fouling.

The findings are described in the journal ACS Nano, in a paper by MIT postdoc Yilin Zhang, professor of civil and environmental engineering Benedetto Marelli, and four others from MIT.

Sep 29, 2024

Scientist develops revolutionary technology that turns air pollution into valuable resource: ‘We can directly use those converted chemicals and fields for other applications’

Posted by in categories: chemistry, sustainability

A new device at the University of Central Florida captures carbon dioxide and turns it into useful products.

Sep 27, 2024

Newly discovered Antibody Protects Against All COVID-19 Variants

Posted by in categories: bioengineering, biotech/medical, chemistry

Researchers have discovered an antibody able to neutralize all known variants of SARS-CoV-2, the virus that causes COVID-19, as well as distantly related SARS-like coronaviruses that infect other animals.

As part of a new study on hybrid immunity to the virus, the large, multi-institution research team led by The University of Texas at Austin discovered and isolated a broadly neutralizing plasma antibody, called SC27, from a single patient. Using technology developed over several years of research into antibody response, the team led by UT engineers and scientists obtained the exact molecular sequence of the antibody, opening the possibility of manufacturing it on a larger scale for future treatments.

“The discovery of SC27, and other antibodies like it in the future, will help us better protect the population against current and future COVID variants,” said Jason Lavinder, a research assistant professor in the Cockrell School of Engineering’s McKetta Department of Chemical Engineering and one of the leaders of the new research, which was recently published in Cell Reports Medicine.

Sep 26, 2024

Fossil Fuels and the Arctic: Uncovering the Impact of Air Pollution

Posted by in categories: chemistry, climatology, sustainability

“Our study is a stark example of how air pollution can substantially alter atmospheric chemistry thousands of miles away,” said Jacob Chalif.


How do fossil fuels influence the atmospheric chemistry of the Arctic? This is what a recent study published in Nature Geoscience hopes to address as a team of scientists investigated how air pollution caused by fossil fuels influences levels of methanesulfonic acid (MSA), which is an airborne byproduct of marine phytoplankton. This study has the potential to help researchers, climate scientists, and the public better understand the long-term consequences of fossil fuels and the steps that can be taken to mitigate them.

This study builds on several past studies, specifically a 2013 ice core research study from Denali National Park, that hypothesized reduced MSA levels resulted from drastic reductions in phytoplankton during the same period. However, the researchers ruled out a connection between MSA and phytoplankton populations but were still puzzled about the drops in MSA levels in the Arctic.

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Sep 26, 2024

Biologists sequence proteins by pulling them through nanopores

Posted by in category: chemistry

A team of chemical biologists at the University of Washington, working with colleagues at Oxford Nanopore Technologies, has developed a protein sequencing process that involves pulling proteins through nanopores in a lipid membrane. Their paper is published in the journal Nature.

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